CN103721853A - Pyroxene type ilmenite flotation inhibitor and preparation method thereof - Google Patents
Pyroxene type ilmenite flotation inhibitor and preparation method thereof Download PDFInfo
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- CN103721853A CN103721853A CN201310682326.2A CN201310682326A CN103721853A CN 103721853 A CN103721853 A CN 103721853A CN 201310682326 A CN201310682326 A CN 201310682326A CN 103721853 A CN103721853 A CN 103721853A
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Abstract
The invention belongs to a ilmenite flotation technology, and particularly relates to a pyroxene type ilmenite flotation inhibitor and a preparation method thereof, wherein the preparation method comprises the steps of oscillating, stirring and forming a mixed solution of sodium silicate, ferric nitrate and sulfuric acid for 30-40 min to obtain the pyroxene type ilmenite flotation inhibitor; the obtained inhibitor comprises the following components in parts by weight: 5-15 parts of sodium silicate, 5-15 parts of ferric nitrate and 1-10 parts of sulfuric acid; the inhibitor prepared by the preparation method has a good selective inhibition effect on olivine and pyroxene, and has an extremely important significance for obtaining a good technical index for titanium selection of the pyroxene type ilmenite.
Description
Technical field
The invention belongs to ilmenite flotation technology, be specifically related to a kind of olive pyroxenite type ilmenite depressing agent and and preparation method thereof.
Background technology
Ilmenite concentrate is that selecting and purchasing out, is production titanium material and the purposes raw material of titanium dioxide very widely from ilmenite or titanomagnetite.Titanium dioxide formal name used at school titanium dioxide (TiO
2), it is a kind of white inorganic pigment, there is nontoxic, best opacity, best whiteness and brightness, be considered to the current best a kind of Chinese white of performance in the world, be widely used in the industry such as coating, plastics, papermaking, printing-ink, chemical fibre, rubber, pottery, cosmetics and food interpolation and medicine.Titanium is widely used in military project, space flight and aviation, marine industries, chemical industry, petroleum refining, auto industry, medical science, physical culture and commodity, construction material and nuclear industry aspect, along with further developing of industry, the value of titanium will more be embodied.
Ilmenite at least accounts for 85% of World Titanium raw material sources, is a kind of important mining deposits.Along with shortage and the rise in price of natural rutile, supply is stable, cheap ilmenite is becoming a kind of important raw materials for production of titanium.Therefore, the technique of preparing of ilmenite plays a part very important in titanium industrial expansion.
It is reported, 35% left and right of World Titanium resource is in China, and Chinese Titanium resource 85% at Panxi Diqu.The type of ilmenite is divided into again gabbro type and olive pyroxenite type.
It is the material that selects titanium that gabbro type vanadium titano-magnetite selects the iron selection tailings after iron by the stage grinding stage, and this iron selection tailings can easier obtain TiO through strong magnetic-flotation flowsheet
2the ilmenite concentrate of grade 47.5% left and right.The magnetic that its reason is pyroxene, feldspar a little less than compared with ilmenite many, through high intensity magnetic separation, most of pyroxene, feldspar can be abandoned, generally in the high intensity magnetic separation stage, can abandon 2/3 inventory of iron selection tailings, only have 1/3 inventory to enter flotation.Conventionally enter to float of high grade, and due to gangue mineral phase and ilmenite relatively large by the floatability difference of sizing mixing, thereby floating agent kind is relatively less, flotation flowsheet is relatively short.The flotation of this class ilmenite, adopts sulfuric acid as adjusting agent conventionally, take MOS, MOH etc. as collecting agent carries out flotation, is relatively easy to obtain TiO
2the ilmenite concentrate of grade 47.5% left and right.Chinese patent literature for example, publication number is CN102294305A, open day is the application for a patent for invention on December 28th, 2011, a kind of Shandong District ilmenite ore dressing flotation medicine is disclosed, comprise: collecting agent MOH, adjusting agent, inhibitor and activator, described collecting agent MOH, adjusting agent, inhibitor and activator mass percent concentration are that concentration is 1 ~ 10% solution.Utilize proportioning of the present invention to synthesize flotation medicine, can output after flotation is selected containing the ilmenite concentrate of 40 ~ 48.73%TiO2.
Olive pyroxenite type vanadium titano-magnetite selected in the iron selection tailings iron selection tailings after iron owing to containing a large amount of olivines through the stage grinding stage, and olivine iron content scope is 10% ~ 50%, its magnetic is compared major part with ilmenite be suitable, some is also stronger than ilmenite, thereby cannot be thrown in mine tailing by high intensity magnetic separation, even if adopt gravity treatment (maintenance higher recovery) to be also difficult to be thrown in mine tailing, a large amount of olivines and ilmenite enter in high intensity magnetic mineral simultaneously, cause high intensity magnetic mineral TiO
2grade is not high, TFe grade higher (with respect to gabbro type), to FLOTATION SEPARATION, brings great difficulty.The flotation of this class ilmenite, adopts sulfuric acid as adjusting agent, take MOS, MOH etc. to carry out flotation, extremely difficult acquisition TiO for collecting agent
2grade>=47.5%, the rate of recovery is higher ilmenite concentrate again.Therefore effective adjusting agent and the collecting agent of researching and developing this class ilmenite are very important.
Summary of the invention
Object of the present invention is exactly that iron selection tailings for olive pyroxenite type vanadium titano-magnetite adopts strong magnetic-flotation flowsheet to select titanium, provide a kind of olive pyroxenite type ilmenite depressing agent and and preparation method, the inhibitor that this preparation method makes is selectively good, gangue mineral can be effectively suppressed, high-grade, high-recovery ilmenite concentrate (TiO can be obtained simultaneously
2>=47.5%) preparation method of highly efficient depressor.
the present invention is achieved through the following technical solutions:
A preparation method for olive pyroxenite type ilmenite depressing agent, is characterized in that step is as follows:
Step 1, weighs respectively sodium metasilicate, ferric nitrate, sulfuric acid, and is mixed with concentration and is 10% sodium silicate solution, iron nitrate solution, sulfuric acid solution;
Step 2, takes out respectively 5 ~ 15 parts of sodium silicate solutions, 5 ~ 15 parts of iron nitrate solutions, 1 ~ 10 part of sulfuric acid solution by sodium silicate solution, iron nitrate solution, the sulfuric acid solution of step 1 preparation, and three kinds of solution that take out are mixed, and obtains mixed solution;
Step 3, by the mixed solution of step 2 10min that stirs, vibrates, then one-tenthization 30 ~ 40min, obtain olive pyroxenite type ilmenite depressing agent.
While configuring mixed solution in step 2, first take out sodium silicate solution and insert in container, then add sulfuric acid solution in sodium silicate solution, finally add again iron nitrate solution.
The above-mentioned olive pyroxenite type ilmenite depressing agent obtaining that configures, is characterized in that the composition that comprises that weight proportion is following: 5 ~ 15 parts of sodium metasilicate, 5 ~ 15 parts of ferric nitrates, 1 ~ 10 part, sulfuric acid.
The inhibitor of above-mentioned gained is used for to Pan Xi olive pyroxenite type ilmenite float test:
Entering to float raw material TiO
2grade 15.96% left and right, in 16% ± in the situation that, applies this medicament containing olivine amount, in 20 ℃ of left and right situations of room temperature, adopts conventional ilmenite floatation process, has obtained TiO
2grade 47.78%, TiO
2the ilmenite concentrate product of the rate of recovery 61.25%.
beneficial effect of the present invention is as follows:
The olive pyroxenite type ilmenite depressing agent preparing of the present invention all has fabulous selective inhibition to the olivine in ilmenite flotation, pyroxene, especially better to the inhibition of olivine, expanded the difference of ilmenite and olivine surface nature, realize the FLOTATION SEPARATION of ilmenite and olivine, solved the technical barrier that olive pyroxenite type ilmenite flotation recovery rate is low, concentrate grade is not high.
The specific embodiment
embodiment 1
A preparation method for olive pyroxenite type ilmenite depressing agent, concrete preparation process is as follows:
Step 1, weighs sodium metasilicate, ferric nitrate, sulfuric acid, and is mixed with respectively the solution of concentration 10%;
Step 2, takes out respectively 1 part of 10 parts of sodium silicate solution, 15 parts of iron nitrate solutions, sulfuric acid solution by three kinds of solution of step 1 preparation and mixes, and obtains mixed solution;
Step 3, by the mixed solution of step 2 10min that stirs, vibrates, then one-tenthization 30 ~ 40min, obtain olive pyroxenite type ilmenite depressing agent.
While configuring mixed solution in step 2, first take out sodium silicate solution and insert in container, then add sulfuric acid solution in sodium silicate solution, finally add again iron nitrate solution.
The olive pyroxenite type ilmenite depressing agent making comprises: 10 parts of sodium metasilicate, 15 parts of ferric nitrates, 1 part, sulfuric acid.
embodiment 2
A preparation method for olive pyroxenite type ilmenite depressing agent, concrete preparation process is as follows:
Step 1, weighs sodium metasilicate, ferric nitrate, sulfuric acid, and is mixed with respectively the solution of concentration 10%;
Step 2, takes out respectively 15 parts of sodium silicate solutions by three kinds of solution of step 1 preparation, 10 parts of iron nitrate solutions, and 3 parts of sulfuric acid solutions mix, and obtain mixed solution;
Step 3, by the mixed solution of step 2 10min that stirs, vibrates, then one-tenthization 30 ~ 40min, obtain olive pyroxenite type ilmenite depressing agent.
While configuring mixed solution in step 2, first take out sodium silicate solution and insert in container, then add sulfuric acid solution in sodium silicate solution, finally add again iron nitrate solution.
The olive pyroxenite type ilmenite depressing agent making comprises: 15 parts of sodium metasilicate, 10 parts of ferric nitrates, 3 parts, sulfuric acid.
embodiment 3
A preparation method for olive pyroxenite type ilmenite depressing agent, concrete preparation process is as follows:
Step 1, weighs sodium metasilicate, ferric nitrate, sulfuric acid, and is mixed with respectively the solution of concentration 10%;
Step 2, takes out respectively 10 parts of sodium silicate solutions by three kinds of solution of step 1 preparation, 10 parts of iron nitrate solutions, and 5 parts of sulfuric acid solutions mix, and obtain mixed solution;
Step 3, by the mixed solution of step 2 10min that stirs, vibrates, then one-tenthization 30 ~ 40min, obtain olive pyroxenite type ilmenite depressing agent.
While configuring mixed solution in step 2, first take out sodium silicate solution and insert in container, then add sulfuric acid solution in sodium silicate solution, finally add again iron nitrate solution.
The olive pyroxenite type ilmenite depressing agent making comprises: 10 parts of sodium metasilicate, 10 parts of ferric nitrates, 5 parts, sulfuric acid.
embodiment 4
A preparation method for olive pyroxenite type ilmenite depressing agent, concrete preparation process is as follows:
Step 1, weighs sodium metasilicate, ferric nitrate, sulfuric acid, and is mixed with respectively the solution of concentration 10%;
Step 2, takes out respectively 5 parts of sodium silicate solutions by three kinds of solution of step 1 preparation, 15 parts of iron nitrate solutions, and 5 parts of sulfuric acid solutions mix, and obtain mixed solution;
Step 3, by the mixed solution of step 2 10min that stirs, vibrates, then one-tenthization 30 ~ 40min, obtain olive pyroxenite type ilmenite depressing agent.
While configuring mixed solution in step 2, first take out sodium silicate solution and insert in container, then add sulfuric acid solution in sodium silicate solution, finally add again iron nitrate solution.
The olive pyroxenite type ilmenite depressing agent making comprises: 5 parts of sodium metasilicate, 15 parts of ferric nitrates, 5 parts, sulfuric acid.
embodiment 5
A preparation method for olive pyroxenite type ilmenite depressing agent, concrete preparation process is as follows:
Step 1, weighs sodium metasilicate, ferric nitrate, sulfuric acid, and is mixed with respectively the solution of concentration 10%;
Step 2, takes out respectively 15 parts of sodium silicate solutions by three kinds of solution of step 1 preparation, and 15 parts of iron nitrate solutions, obtain mixed solution;
Step 3, by the mixed solution of step 2 10min that stirs, vibrates, then one-tenthization 30 ~ 40min, obtain olive pyroxenite type ilmenite depressing agent;
While configuring mixed solution in step 2, first take out sodium silicate solution and insert in container, then add iron nitrate solution in sodium silicate solution.
The olive pyroxenite type ilmenite depressing agent making comprises: 15 parts of sodium metasilicate, 15 parts of ferric nitrates, 0 part, sulfuric acid.
Wherein, when ilmenite is carried out to flotation, the raw mineral materials of employing is: climb western extremely low-grade olive pyroxenite type ilmenite, this sample ore enters to float material TiO
2grade 12.96%, olivine content 30% ±, all the other gangues are mainly pyroxene.
System of Flotation Reagent and operating condition: the sulfuric acid of take coordinates inhibitor of the present invention as adjusting agent, take EMZB-01 as collecting agent, by a technological process that slightly sweeps five essences, all obtained TiO
2grade 47 ~ 48%, TiO
2the ilmenite concentrate product of the rate of recovery 55 ~ 60%.
Claims (3)
1. a preparation method for olive pyroxenite type ilmenite depressing agent, is characterized in that step is as follows:
Step 1, weighs respectively sodium metasilicate, ferric nitrate, sulfuric acid, and is mixed with concentration and is 10% sodium silicate solution, iron nitrate solution, sulfuric acid solution;
Step 2, takes out respectively 5 ~ 15 parts of sodium silicate solutions, 5 ~ 15 parts of iron nitrate solutions, 1 ~ 10 part of sulfuric acid solution by sodium silicate solution, iron nitrate solution, the sulfuric acid solution of step 1 preparation, and three kinds of solution that take out are mixed, and obtains mixed solution;
Step 3, by the mixed solution of step 2 10min that stirs, vibrates, then one-tenthization 30 ~ 40min, obtain olive pyroxenite type ilmenite depressing agent.
2. the preparation method of a kind of olive pyroxenite type ilmenite depressing agent according to claim 1, it is characterized in that: while configuring mixed solution in step 2, first take out sodium silicate solution and insert in container, then add sulfuric acid solution in sodium silicate solution, finally add again iron nitrate solution.
3. the olive pyroxenite type ilmenite depressing agent preparing according to claim 1 or 2, is characterized in that the composition that comprises that weight proportion is following: 5 ~ 15 parts of sodium metasilicate, 5 ~ 15 parts of ferric nitrates, 1 ~ 10 part, sulfuric acid.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106492994A (en) * | 2016-11-02 | 2017-03-15 | 广西大学 | A kind of preparation method of olivine mineral inhibitor |
| CN107837967A (en) * | 2017-11-08 | 2018-03-27 | 中南大学 | A kind of calcic class or silicates gangue mineral depressing agent and its preparation method and application |
| CN109604068A (en) * | 2018-11-16 | 2019-04-12 | 中国地质科学院矿产综合利用研究所 | Combined inhibitor for olivine flotation, preparation method and application thereof |
-
2013
- 2013-12-10 CN CN201310682326.2A patent/CN103721853A/en active Pending
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| 丘继存等: "酸化硅酸钠和硝酸铁对细粒石英的分散", 《东北工学院学报》 * |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106492994A (en) * | 2016-11-02 | 2017-03-15 | 广西大学 | A kind of preparation method of olivine mineral inhibitor |
| CN106492994B (en) * | 2016-11-02 | 2018-11-20 | 广西大学 | A kind of preparation method of olivine mineral inhibitor |
| CN107837967A (en) * | 2017-11-08 | 2018-03-27 | 中南大学 | A kind of calcic class or silicates gangue mineral depressing agent and its preparation method and application |
| CN107837967B (en) * | 2017-11-08 | 2019-11-15 | 中南大学 | A kind of calcic class or silicates gangue mineral depressing agent and its preparation method and application |
| CN109604068A (en) * | 2018-11-16 | 2019-04-12 | 中国地质科学院矿产综合利用研究所 | Combined inhibitor for olivine flotation, preparation method and application thereof |
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Application publication date: 20140416 |